19285588

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 20631212

約数列:

[1, 2, 4, 7, 14, 28, 71, 89, 109, 142, 178, 218, 284, 356, 436, 497, 623, 763, 994, 1246, 1526, 1988, 2492, 3052, 6319, 7739, 9701, 12638, 15478, 19402, 25276, 30956, 38804, 44233, 54173, 67907, 88466, 108346, 135814, 176932, 216692, 271628, 688771, 1377542, 2755084, 4821397, 9642794, 19285588]

約数ペア:

[(1, 19285588), (2, 9642794), (4, 4821397), (7, 2755084), (14, 1377542), (28, 688771), (71, 271628), (89, 216692), (109, 176932), (142, 135814), (178, 108346), (218, 88466), (284, 67907), (356, 54173), (436, 44233), (497, 38804), (623, 30956), (763, 25276), (994, 19402), (1246, 15478), (1526, 12638), (1988, 9701), (2492, 7739), (3052, 6319)]